Uses
ChemicalBook > CAS DataBase List > DL-Lactide

DL-Lactide

Uses
Product Name
DL-Lactide
CAS No.
95-96-5
Chemical Name
DL-Lactide
Synonyms
LACTIDE;3,6-DIMETHYL-1,4-DIOXANE-2,5-DIONE;1,4-Dioxane-2,5-dione, 3,6-dimethyl-;D,L-Lactide S;LACTIC ANHYDRIDE;5-Dione,3;dilactide;purasorbl;DL-LACTIDE;DL-DILACTIDE
CBNumber
CB7178777
Molecular Formula
C6H8O4
Formula Weight
144.13
MOL File
95-96-5.mol
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DL-Lactide Property

Melting point:
116-119 °C
Boiling point:
142 °C8 mm Hg(lit.)
Density 
1.186±0.06 g/cm3(Predicted)
vapor pressure 
0.311Pa at 25℃
Flash point:
180°C
storage temp. 
2-8°C
solubility 
Soluble in chloroform and methanol. Slightly soluble in benzene.
form 
Crystalline Powder
color 
White
Water Solubility 
16.3g/L at 20℃
Sensitive 
Moisture Sensitive
BRN 
82121
LogP
0.4 at 25℃
NIST Chemistry Reference
1,4-Dioxane-2,5-dione, 3,6-dimethyl-(95-96-5)
EPA Substance Registry System
1,4-Dioxane-2,5-dione, 3,6-dimethyl- (95-96-5)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38-36
Safety Statements 
26-37/39
WGK Germany 
2
RTECS 
JH1100000
TSCA 
Yes
HS Code 
29322090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H319Causes serious eye irritation

Precautionary statements

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
303143
Product name
3,6-Dimethyl-1,4-dioxane-2,5-dione
Packaging
25g
Price
$83.9
Updated
2024/03/01
Sigma-Aldrich
Product number
303143
Product name
3,6-Dimethyl-1,4-dioxane-2,5-dione
Packaging
100g
Price
$255
Updated
2024/03/01
TCI Chemical
Product number
L0091
Product name
DL-Lactide
Purity
>98.0%(T)
Packaging
25g
Price
$87
Updated
2024/03/01
TCI Chemical
Product number
L0091
Product name
DL-Lactide
Purity
>98.0%(T)
Packaging
100g
Price
$300
Updated
2024/03/01
Alfa Aesar
Product number
L09026
Product name
DL-Lactide, 99%
Packaging
10g
Price
$34.65
Updated
2024/03/01
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DL-Lactide Chemical Properties,Usage,Production

Uses

DL-Lactide is used to produce 2-hydroxy-propionic acid 1-(1-phenyl-ethoxycarbonyl)-ethyl ester. It acts as an important raw material and an intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyes. It is involved in enzymatic alcoholysis to produce both alkyl (R)-lactates and alkyl (S,S)-lactyllactates.DL-Lactide is often used as a protective layer in wound coatings, or as anchors, screws or mesh in surgery, since it degrades in about six months to the innocuous lactic acid.

Chemical Properties

White crystalline powder

Uses

DL-Lactide is used to produce 2-hydroxy-propionic acid 1-(1-phenyl-ethoxycarbonyl)-ethyl ester. It acts as an important raw material and an intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyes. It is involved in enzymatic alcoholysis to produce both alkyl (R)-lactates and alkyl (S,S)-lactyllactates.

Uses

Enzymatic alcoholysis of this racemic lactide catalyzed by commercial Novozym® 435 produces both alkyl (R)-lactates and alkyl (S,S)-lactyllactates in good yield and high enantiopurity.

Definition

ChEBI: Lactide is a member of dioxanes.

General Description

3,6-Dimethyl-1,4-dioxane-2,5-dione (or rac-lactide), is the 50:50 racemic mixture of D- and L-Lactide. Rac-lactide is a lactone derived from lactic acid that has attracted great interest in academia and commercial applications, as it is derived from abundant renewable resources. Rac-lactide can be ready polymerized via ring-opening polymerization, using a variety of metal or organocatalysts, yielding poly(D,L-lactide). While the resulting polymer is generally amorphous, the use of stereospecific catalysts can lead to heterotactic PLA, which exhibits some degree of crystallinity.

Flammability and Explosibility

Non flammable

DL-Lactide Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from DL-Lactide manufacturers

Hebei Yanxi Chemical Co., Ltd.
Product
DL-Lactide 95-96-5
Price
US $40.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-09-06
Hebei Weibang Biotechnology Co., Ltd
Product
DL-Lactide 95-96-5
Price
US $30.00-10.00/KG
Min. Order
50KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-24
airuikechemical co., ltd.
Product
dl-lactide 95-96-5
Price
US $0.00-0.00/Kg
Min. Order
1Kg
Purity
99.9%
Supply Ability
200tons
Release date
2024-04-08

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